How to test the Catalytic Converter
#1
How to test the Catalytic Converter
It seems as if I get pieces of glass or metal jumping when the motor is revving up.. Can that be the Catalytic Converter pieces coming apart inside... How can I test or clean it out... It is like popcorn going off in there.. I know the sound is coming from underneath and just a pain in the ***..lol
Last edited by F150-07-4.6; 07-23-2018 at 06:03 PM.
#2
If a converter is plugged/restricted it can definitely cause a power loss.
If you connect a vacuum gauge to the intake manifold vac at idle should be around 17-19 in.
When the engine RPM is raised to around 2500 RPM if the vacuum continues go down, the exhaust system is plugged/restricted.
If you connect a vacuum gauge to the intake manifold vac at idle should be around 17-19 in.
When the engine RPM is raised to around 2500 RPM if the vacuum continues go down, the exhaust system is plugged/restricted.
#4
Ok here's what I got from the scanner....
Full Sys 1 CL
CALC LOAD % 100
ECT (*F) 183.2
STFT B1 28.1
LTFT B1 25.0
STFT B2 -3.1
LTFT B2 4.7
MAP INHG 28.3
ENG RPM 2016
VEH SPEED 16
SPARK ADV. 10.0
IAT *f 86
MAF LB. MIN. 10.4
TPS % 42.0
O2S B1 S1 {V} 0.755
STFT B1S1 % 28.1
O2S B1S2 {V} 0.690
STFT B1S2 % 99.2
02S B2S1 {V} 0.385
STFT B2S1 % 5.5
02S B2S2 {V} 0.760
STFT B2S2 % 99.2
RUNTIME {SEC.} 1109
FP/VAC {PSI} 41.2
COMMAND EGR 0.0
EGR ERROR 0.0
COMMAND EVAP 0.0
FUEL LEVEL 24.7
WARM UP DTC CLR 3
CLR DIST MILES
EVAP_UP {INH2O -0.207
BARDO {INHG} 29.5
CAT TE 11 {*F} 1390.8
CAT TE 21 {*F} 1390.8
ECU VOLTS 14.296
LOAD VALUE % 81.6
EQ RATIO 0.999
REL TPS % 29.0
AMBIENT {F} 66.2
TPS B % 71.4
ACC PEDAL D % 68.6
E 66.7
F 55.3
COMMAND TACH % -45.9
Hopefully this will shed some light on the subject. I'm running out of hair to pull out dude.. Thanks for all your help... oh which side is bank 1 anyway ???
Full Sys 1 CL
CALC LOAD % 100
ECT (*F) 183.2
STFT B1 28.1
LTFT B1 25.0
STFT B2 -3.1
LTFT B2 4.7
MAP INHG 28.3
ENG RPM 2016
VEH SPEED 16
SPARK ADV. 10.0
IAT *f 86
MAF LB. MIN. 10.4
TPS % 42.0
O2S B1 S1 {V} 0.755
STFT B1S1 % 28.1
O2S B1S2 {V} 0.690
STFT B1S2 % 99.2
02S B2S1 {V} 0.385
STFT B2S1 % 5.5
02S B2S2 {V} 0.760
STFT B2S2 % 99.2
RUNTIME {SEC.} 1109
FP/VAC {PSI} 41.2
COMMAND EGR 0.0
EGR ERROR 0.0
COMMAND EVAP 0.0
FUEL LEVEL 24.7
WARM UP DTC CLR 3
CLR DIST MILES
EVAP_UP {INH2O -0.207
BARDO {INHG} 29.5
CAT TE 11 {*F} 1390.8
CAT TE 21 {*F} 1390.8
ECU VOLTS 14.296
LOAD VALUE % 81.6
EQ RATIO 0.999
REL TPS % 29.0
AMBIENT {F} 66.2
TPS B % 71.4
ACC PEDAL D % 68.6
E 66.7
F 55.3
COMMAND TACH % -45.9
Hopefully this will shed some light on the subject. I'm running out of hair to pull out dude.. Thanks for all your help... oh which side is bank 1 anyway ???
#8
Yes Sir, For a while there I was pricing catilytic converters and thought I was going to have to replace the both of them.. Youtchhhh. But with all the help I got I saved a hell of a lot of money and can't thank yas enough !!!. BTW the Factory Service Manual I got online for like 7 bucks......... Doesn't show what I need it's more or less pictures of the truck taken apart is all.. drawings that is...
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